Perfect pens

I absolutely love it! The four colors work perfectly for my purposes (I do a lot of sentence parsing and translating, and this gives me a color for each line of text). I find that the green ink is a little bit finicky for me, sometimes it takes a bit to start up (just a stroke or two, but still, more than the other colors), but once it does it's as lovely and smooth as the rest. It was totally worth the $15 (plus refills) for me!